Sample Code 24: How to setup and process GtkComboBox? |
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Written by kksou
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Monday, 18 September 2006 |
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Problem You want to set up a pulldown menu as shown below:
Solution
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| <?php
$window = new GtkWindow();
$window->connect_simple('destroy', array( 'Gtk', 'main_quit'));
$window->set_size_request(400,150);
$window->add($vbox = new GtkVBox());
// display title
$title = new GtkLabel("Setup and process GtkComboBox");
$title->modify_font(new PangoFontDescription("Times New Roman Italic 10"));
$title->modify_fg(Gtk::STATE_NORMAL, GdkColor::parse("#0000ff"));
$title->set_size_request(-1, 60);
$vbox->pack_start($title, 0, 0);
// the selection
$list = array('item 1', 'item 2', 'item 3', 'item 4');
$vbox->pack_start($hbox=new GtkHBox(), 0, 0);
$hbox->pack_start(new GtkLabel('Select: '), 0, 0);
// Create a combobox
$combobox = new GtkComboBox();
// Create a model
if (defined("GObject::TYPE_STRING")) {
$model = new GtkListStore(GObject::TYPE_STRING);
} else {
$model = new GtkListStore(Gtk::TYPE_STRING);
}
// Set up the combobox
$combobox->set_model($model); // note 1
$cellRenderer = new GtkCellRendererText(); // note 2
$combobox->pack_start($cellRenderer);
$combobox->set_attributes($cellRenderer, 'text', 0); // note 3
// Stuff the choices in the model
foreach($list as $choice) {
$model->append(array($choice));
}
// Set up a hbox to contain the combobox as well as the Submit button
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Explanation
- Binds the model to the combobox.
- The GtkCellrenderertext is just a class used to display the cell contents as text.
- The '0' here refers to the first column of the data model
$model.
- Note that we pass
$combobox along so that we can have access to this when the user clicks the submit button.
- Retrieves the $model from $combobox with
$combobox->get_model()
- The selection is read using GtkTreemodel::get_value()
(GtkTreeIter iter, int column). Note that we can get the selected iter with GtkCombobox::get_active()
Notes
You may want to take a look at How to setup and process GtkComboBoxEntry - Part 1? to compare the difference between GtkComboBox and GtkComboBoxEntry.
Related Links
User reviews Average user ratings:  4.0 (from 3 users) Note: You have to be a registered member to leave a comment. Free registration here. |
August 21, 2007 10:35am
Hi kksou. Not only this but all your works has been extremely useful to me. However I have one question. ¿What if I need a classic html combo value-text to show? I mean, I want to to show for example a month combo, showing the text mont January, February, March but when I retrieve de data value for this combo I need the numeric value 01,02,03 . Also I want to to set an active item, I have a years combo array(2007=>"2007",2008=>"2008") and I wish to choose somthig like $combobox->set_active(date("Y"));
How can I do that?
August 26, 2007 9:49am
Please refer to the following two articles:
How to setup GtkComboBox with label value pair - Part 1?
How to setup GtkComboBox with label value pair - Part 2 - set active?
April 30, 2008 7:50am